1. Awad El Karim M.A., Gad El Rab M.O., Omer A.A., (1986) —Respiratory and allergic disorders in workers exposed to grain and flour dusts.Arch. Environ. Health,41:297–301.
2. Blainey A.D., Ollier S., Smart W., Davies R.J., (1984) —Occupational asthma in grain terminal workers: the role of storage mites. Thorax (abs),39:691.
3. Chan-Yeung M., Schultzer H., MacLean L., Dorken E., Grzybowski S. (1980) —Epidemiological health survey of grain elevator workers in British Columbia. Am. Rev. Respir. Dis.,121:329–338.
4. Do Pico G.A., Reddan W., Flaherty D., Tsiatis A., Peters M.E., Rao P., Rankin J., (1977) —Respiratory abnormalities among grain handlers: a clinical, physiologic and immunologic study. Am. Rev. Respir. Dis.,115:915–927.
5. Dosman J.A., Graham B.L., Cotton D.L. (1979) —Chronic bronchitis and exposure to cereal grain dust. Am. Rev. Respir. Dis.,120:477–480.